I've used egifter.com in the past with crypto, no problem. But last weekend, I tried to buy a gift card using my credit card. Two days later, my account was compromised with 4 fraudulent charges. I caught it super early and credit card company had my back. Nothing lost. One interesting thing about this case. A package was enroute to the fraudsters. I organized my local police and the police in that area to operate a sting on the package. Good thing for the thieves though, the merchant recalled the package through fedex (at my request) so I actually saved them. I should have let the package go through. That would have been interesting.
So moral of the story....
Don't use egifter!!!
Before you conclude that the compromise came from them, have you thought through about the possibility that you might have been one way or the other be responsible for the vulnerability? The reason is that you have been using this services before without any issue why now? Another is if they are really stealing your funds, then they would have not targeted you alone which means other people would have been victims as well which we are yet to see anyone coming forward. Try maybe you will find others in the same scenario.
Again, have you tried contacting the support of this service provider on the issue that happened when you used their services last and from their response, you it could either help you in reaching a conclusion about them being responsible or they are only trying to cover their tracks.
I've used bitcoin in past, never a credit card. When I entered my credit card, the transaction froze and I had 2 pending $1 charges on my card. Probably because I tried to enter it twice. Then 2 days later, this happens. The other places I used my card were regular purchases, nothing else out of the ordinary. I did purchase something on costco.com, but I highly doubt that was it. I did contact support, of course they deny everything. But someone inside their business is skimming credit cards. There's no other way to explain it. They used my new phone number on one of the purchases. This is a brand new number. There is absolutely no way this was from another merchant. I'm not asking for any resolution or redress to my issue. I'm just warning everyone not to use them. Their business model is a bit sketchy to say the least. They give out free money to those who purchase gift cards. How do they acquire these cards and where's the extra money coming from? A simple google search of "egifter scam" reveals plenty of complaints exposing them as an organized crime front. I'm just figuring this out the hard way.
The fact that you bought in eGifter when your card got comprised doesn't mean that eGifter are those that hacked your credit card.
It is possible that you have a virus in your computer or a trojan horse that was waiting for you to enter a payment method so he can steal, I would suggest you to make a scan and let us know the result.
I purchased at eGifter several times with my credit card and never had such a problem, also talked with their support few times and they seem to be okay, I don't believe that a company would steal your credit card as they simply have no reason to do that, they handle hundreds of credit cards daily.
Luckily the credit cards provide insurance and you received your funds back, I am glad to see that all went good at the end.