IDP IELTS — Money deducted and date not confirmed.

Address: East Godavari, Andhra Pradesh

I have booked IELTS exam though IDP site. they deducted 10, 750 from my account and didnt send me confirmation of receipt for money deducted or confirmation of exam date. i tried to contact the customer care but they response is completely useless. they informed me that they will refund my money in 7 working days. but by the time all the available slots will be filled and they suggest me to book another date but i cant risk anymore. The main point is once they deducted the money from my account why they are not sending confirmation email. and If the date is not confirmed why they deduct the money. their customer service is so crap. no proper response he just disconnected the chat. I tried to contact my friends they are also facing similar issues. i need a proper explanation why government is still not taking any action against IDP. Thank you