Certainly, here are some common payment gateways that could be used to buy a subscription from us:
PayPal: We prefer to get payment on PayPal of 1 month subscription because if any customer want to set for monthly then they can easily setup the payment on auto so every month he didn't have to pay by himself PayPal automatically get the money from customer and pay the invoice and from here we extend the customer subscription.
Bank Transfer: We prefer this method to buy 3,6 and 12 month subscription because with this method we will be saved our money from cutting of taxes. As if customer pay us 65GBP through PayPal then we only get 61GBP only after giving the fees of PayPal. So we want to save our this money and get big Payments on Bank transfer.
Debit and Credit Cards: We prefer this method also because most of the customers have debit card. They can easily pay via debit and credit cards through a invoice link.