e_delece

Hi everyone, I recently bought an 11 plate A1 and since I've had it, the windows have been sticking in the seals. I need to push the window button up and down a few times to loosen it off before it moves. I have tried cleaning it with cleaning solution for windows and my boyfriend who had his own valeting company had good stuff for removing glue etc but the problem still persists. Anyone else got or had this problem? Kind regards, Elle