I had the issue and contacted support and they fixed it within 24 hours. I was able to buy via PayPal after getting the cryptic 'unfortunately an error has occurred' red banner at the top of the gems purchase window. My brother in law also had the same issue, contacted support, and was fixed within 30 hours. My wife now has the same exact issue. Opened a ticket over a week ago, and she has been told on two separate occasions in this ticket the issue was 'fixed', yet she still cannot buy gems via PayPal or credit card. We now are getting replies back from support stating the issue is on PayPal's or our bank's side, yet we have contacted both PayPal and our bank, and they show no transaction attempts from Digital River, yet GW2 support CONTINUES to say we need to work with our bank or PayPal on the 'declines'. We have even supplied screenshots from our bank showing no declined transactions in the last 7 days, yet support obviously is not reading what we are posting, and saying Digital River says it is on our bank or PayPal's side. We've tried PayPal and two different credit cards on her account, all with the same result. I have even tried deleting the local GW2 cache folder and trying again to no avail. We asked for our ticket to be escalated to a Manager, and even provided our phone number for them to call so we could just actually TALK and resolve this. They have ignored our request to escalate, and state they 'don't offer phone support at this time', so we have to wait 24 hours for each response to our ticket. Really sucks because a simple phone call where human beings could actually TALK would likely resolve this in moments, not days or weeks, especially considering they are not reading our replies thoroughly. Support is responding once every 24 hours to us, but we are making zero progress with them. Now the new patch has dropped and my wife would like to buy a level 80 boost or two, but she cannot buy gems, and you cannot gift level boosts. So freaking frustrating.