If there is a 3 servers limit, at least two new should have been accepted for me right? And why in the first place do they allow to order a 4th one if it's not

If there is a 3 servers limit, at least two new should have been accepted for me right? And why in the first place do they allow to order a 4th one if it's not even valid? Anyway, I'm pretty sure my orders have been cancelled because I paid using Paypal, like others said. This is quite weird since this is the way I have paid them for over one year now (for my other server) and I didn't see any message/email telling another payment method should be used instead.