Router Not Working!!

I recently purchased a ZLT X100 Pro router online, and from the first day it has not been working properly. The router switches on, connects to Wi-Fi, but there is no internet connection. The globe indicator turns red and then switches off.

I contacted customer care for assistance, but even they could not help me. I am using an MTN uncapped SIM, and although the router connects, there is still no browsing. I can check my balance, but the internet does not work at all.

I paid for this product expecting it to work, but it has failed from day one. I would like this issue resolved urgently — either a replacement router, a proper fix, or a refund.

Please assist.