WhatsApp business getting banned again and again. Pls help if there is any solution

Hello everyone I run a small business in India and I contact my customers on WhatsApp business but from a few weeks I am getting banned and unbanned like 10-12 times. I also got a new number but after a week it also got banned 1-2 times. I just want a solution to keep my old number working and also if I get to know how I am violating there policy. Pls help if u can