Nykaa.com — cancelled and initiated the refund of order without my knowledge

Even after one month of ordering products on sale from nykaa, the products didn't get delivered to me. I was requesting for redelivery everyday and talked to the customer care 100 times as a makeup artist & wedding season i wanted the products asap. But even after requesting the redelivery so many times, they initiated my refund. The customer care people asked me to reorder but those products were no longer available on sale and was of high prize. One of the customer care guy told me that he will make the less prize for the products i want to order but then again when i agreed he started requesting me to negotiate. Then i talked to their manager but she was rude and didn't took any action on my request. Seriously, this is not expected from nykaa. They cancelled my order, they initiated the refund without my knowledge, they requested me to order again in high prize...
This is the worst of online shopping that can happen on sale