Idp Ielts — amount deducted but ielts date confirmation mail not received

While booking a slot for general training on 15-12-18 for centre = noida, money has been deducted from my account doing hdfc bank netbanking transaction but no confirmation has been received from idp regarding the booking of the date on mail. Moreover the transaction showed as unsuccessful. However i havw received the message received that payment has been made to idp. Please help me what should i do, in this case
Name of applicant : kirti
Mail i'd : [email protected]
Phone [protected]