Hi Fi corporation

Hi Fi corporation Southgate we bought a tablet from them and after a month it was slow ,freezing and jaming. We continued using it. We tried formating it and buying SD card for it and that didn't work. We took it back to the shop and they took it for repairs and they bought it back dead not working not charging. I've been running after them and their customer service said they waiting for a report it's been a month waiting for the report of that tablet.