If you paid via PayPal, it's very possible that you accidentally paid twice. Please keep in mind VPSFX can't take payment from you if you use PayPal.
In most cases, people sign up for a PayPal subscription which will result in automatic PayPal payments every month but forget they have it and either pay manually or sign up for a duplicate PayPal scription. Doing a search on your PayPal account will tell you why you sent a payment to us.