Pathetic service from MTN

I bought the MTN ZTE MF286R Wi-Fi 75GB online (via MTN Direct) and was delivered to myself on the 27th of August 2020. The past week I have had no network connectivity .Today I went to the MTN Shop at the Pavillion and I was advised that the wi-fi is a fixed line and I cannot only use it in one fixed location. This left me very shocked and surprised as the advert never mentioned anything about this being a fixed line. I travel due to work and studies and I cannot afford to have data that can only be accessed in one location. I called the MTN direct centre and I was sent from pillar to post and they eventually hung up on me . To make matters worse , the lady that was assisting me at the Pavillion (Vanessa) also left me hanging without resolving my query. This contract has become a nightmare so MTN please cancel this contract for me. I have no data yet I am still expected to pay. How pathetic can this situation get.