iplay 20 pro tablet touch screen issue

Hello. Purchased in July 2021 from Banggood CZ warehouse the tablet of the title. The tablet has a very strange problem. Below section of the screen is unresponsive. In every day use I cannot see the issue. But in games when the tablet turns in landscape mode the section next to the charging port for one centimeter is not working.Tried hard reset, rebooting but nothing. It is clearly a screen hardware problem. For your information it is the second device I purchased with the same problem. The other one was over a year old and then the center of the screen became unresponsive also. Threw it in the bin and thought was of my fault. It is clear now that there is a problem with manufacturing defects. Respond please.