Yep. It's only an issue if you are giving the buyer something irreversible.
It's essentially no greater risk than accepting credit cards; any buyer can do a chargeback and get their money back at a moment's notice, but it happens fairly infrequently and when it does happen, you just revoke their rights to the service and ban them if necessary.
It's essentially no greater risk than accepting credit cards; any buyer can do a chargeback and get their money back at a moment's notice, but it happens fairly infrequently and when it does happen, you just revoke their rights to the service and ban them if necessary.