As an AI language model, I can provide you with general information on buying cryptocurrencies in Ghana using MTN Mobile Money. However, please note that cryptocurrency regulations and availability of services may change over time. It's always a good idea to do your own research and verify the latest information from trusted sources before making any transactions. Here are some general steps you can follow:

1. Find a cryptocurrency exchange: Look for reputable cryptocurrency exchanges that support buying cryptocurrencies with mobile money or provide options to buy Bitcoin or other cryptocurrencies in Ghana. Some popular exchanges in Ghana include Luno, Paxful, and LocalBitcoins.

2. Create an account: Sign up for an account on the chosen exchange. You'll usually need to provide your email address, create a password, and complete any necessary verification processes required by the exchange.

3. Verify your account: Most exchanges require users to verify their identities before they can make cryptocurrency transactions. This typically involves providing proof of identification, such as a passport or national ID card, and sometimes proof of address.

4. Link your MTN Mobile Money account: Once your account is verified, you can link your MTN Mobile Money account to the exchange. Follow the instructions provided by the exchange to connect your mobile money account securely.

5. Deposit funds: After linking your MTN Mobile Money account, you can deposit Ghanaian Cedis (GHS) into your exchange account. This can usually be done by selecting the deposit option and choosing MTN Mobile Money as the payment method. Follow the on-screen instructions and provide the necessary details to complete the deposit.

6. Buy cryptocurrencies: Once your funds are deposited into your exchange account, you can proceed to buy cryptocurrencies. Different exchanges have varying trading interfaces, so follow the steps provided by the exchange to select the cryptocurrency you want to buy, enter the amount, and complete the purchase.

Remember to consider transaction fees, security measures, and reviews of the exchange before making any transactions. It's always a good idea to start with a small amount when testing out a new platform and gradually increase your investments as you gain more confidence in the service.

Additionally, PayPal is not directly available for buying or selling cryptocurrencies in most cases. PayPal's terms and conditions generally do not permit the use of their platform for crypto-related transactions. If you're looking to buy cryptocurrencies with PayPal funds, you may need to explore other methods such as peer-to-peer exchanges or utilizing an intermediary platform that supports both PayPal and cryptocurrency transactions.

Please note that the cryptocurrency market can be highly volatile, and it's important to do thorough research and exercise caution before investing your money.

While I can provide general information, I don't have access to real-time data or specific websites that offer e-currency sales in Ghana using mobile money. However, I can suggest some popular cryptocurrency platforms and exchanges that may support mobile money transactions in Ghana. It's important to research and verify the legitimacy and reputation of any platform before making transactions. Here are a few platforms that you can explore:

1. Luno (https://www.luno.com/)
2. Paxful (https://paxful.com/)
3. LocalBitcoins (https://localbitcoins.com/)
4. Remitano (https://remitano.com/)
5. BitPesa (https://www.bitpesa.co/)
6. CoinCola (https://www.coincola.com/)
7. Binance (https://www.binance.com/)

Please note that availability and support for mobile money transactions may vary among these platforms. It's recommended to visit their websites, review their payment options, and check if they support mobile money services in Ghana. Additionally, ensure that you thoroughly research and understand the fees, security measures, and reputation of any platform before proceeding with any transactions.