Guys need help,

I recently use water mark spot removers for my drivers side window for my Proton Persona. It removed the spots but it causes some blurriness in a small section of the window.

I only used a little and the blurriness only affect two small parts.

I tried using wax , car shampoo , soap, water etc but it won't go away.

I previously used the water spot removers for my other cars but all were fine. Only up to now.

Used wax already, but to now avail.

Strange thing is, the parts of the window where I used alot of the watermark remover, no problem at all. The middle part whereby I used a little, its like blurred massively.

Yesterday I used hot water to wipe, its slightly better. But its still damn ugly and affect vision.

I used on all my other cars before, dunno why like this.

How much does polishing cost ah?