Torbox subscription queries

Hi, I have just purchased the torbox yearly subscription with 30% discount. This along with referral offer I got ~15 months in total. I have a couple of questions:

1. When will the next payment be deducted since I have given the UPI mandate (from India)? Will I be notified before deduction? Will they continue with the same 30% offer in the further renewals as well? Is there a way to check these info in their website?
2. If I cancel the UPI mandate now, will my subscription still continue untill I finish the whole ~15 months.