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Đánh giá về Grupo sin

The customer service provided by Grupo sin is aver...

The customer service provided by Grupo sin is average. Although they were responsive to my inquiries, I found that their knowledge of their products and services was lacking. I had to do a lot of research on my own to get the answers I needed. The website design could also use some improvement as it was not very user-friendly. Overall, a decent experience, but nothing exceptional.