Please can you reset my apple account to zero

Contact iTunes Support for assistance. See the Apple Support articles below for contact information.   

iTunes Support – world wide   -

Apple Support schedule phone call     -

Billings and Subscriptions   -

If necessary, use Twitter or Messages.

Apple on Twitter

Messages chat with Apple

If you have less then the cost of a single item, please ask iTunes Store support staff to zero out your balance

iTunes - Official Apple Support