UnlockUnit.com This company refused to reimburse me Internet

I've seen that others have given this "company" good marks. My experience with them was quite otherwise. I paid for their "service", then realized that I did not need to unlock my phone because it wasn't locked in the first place. Once I discovered that, my UnlockUnit correspondants failed to respond to my emails. When I continued to email them saying that their website states, "Money back guarantee" and "Excellent customer support", they ignored all my messages. Fortunately for me, I had used the best bank card one could possibly have. They back me on all disputes. I was reimbursed by those idiots, but only by going through my bank. UnlockUnit had not only refused to reimburse me, they refused to so much as respond to me. THEN, a few weeks later, I received an email saying,

 "Hi,My name is Gabriela, I'm co-founder of UnlockUnit.com. I noticed that you've tried to place an order with us and I would like to ask if you'd be so kind to tell me what went wrong. We're constantly striving to improve our service and it would be very helpful for us to know the reason why you haven't completed the order with us."

 I have now realized from other online comments that this is a standard letter sent out by the website. Before knowing this, I responded to Ms. "co-founders" email informing her that I did not TRY to place an order, I DID place an order. I explained all of what had occurred. But, just like apparently ALL the UnlockUnit team, she did not reply. It would appear very clear that they respond only when they think they're going to get your money. Avoid these idiots! There must be more reliable options out there!