The option to receive Paypal payments is sadly not available in Belarus and that is why you don't have the upgrade option. You can only send payments for purchases funded by your (confirmed) credit card.
Paypal varies a lot country to country and can only offer the services that the banks / governments of that country allow it to offer. There are quite a few countries unable to receive Paypal payments.
Advice is voluntary. Kudos / Solution appreciated.
