Seems happening a lot here on dispenser.tf lately. Seems any scammers can just hit Dispenser for VIP, sells enough stuffs and gain profits then revoke all his gift later. Scammer doesn't care those who are scammed by his shop and really does not care getting banned as they can come back later for another VIP. Comes back again to Dispenser.tf and goes VIP once again with another new account sell enough stuff and profit etc... A scammer can keep coming back to dispenser.tf over and over again. Does this same process over and over.
I think Dispenser.tf should start screening VIP requests rather than immediately accepting any new/different steam accounts to be VIP. If Dispenser.tf really cares then there should be requirements to become VIP to keep scammers out.
The biggest problem right now is that Paypal is totally shit when it comes to seller protection. If the scammer uses a stolen credit card to make the premium purchase he could basically chargeback later and almost win 100%. Sometimes you can even chargeback with absolutely no reason. I have been thinking of getting out of Paypal completely. Now should be the time.
If they bother to buy VIP with keys, we will run some scripts to detect potentially dangerous account and lock them immediately after they have purchased the premium, by looking at the account's details and what they put in.
Also, we are now making some kind of 'approval' system that put new VIP status on hold until my approval.