Beko Power Clean Pro Rechargeable Vertical Vacuum Cleaner Does Not Rotate

The broom head of my Beko Power clean Pro rechargeable vertical vacuum cleaner does not rotate. It has been in and out of repair since February, I leave my vacuum cleaner to the authorized center every 15 days and it always gives an error from the same place, they cannot charge a fee because the warranty has not expired. Now the nozzle of my vacuum cleaner, which I turn on to sweep my house, does not rotate again. I take it in, they say they did it, they say it gives an error again, obviously a chronic problem, we are tired of leaving it to the service. Either they should refund our fee or renew the product. They are waiting for the warranty to expire.