Airtime Voucher problem

<br> Yesterday afternoon I went to Pep cell Westgate to purchase airtime voucher and when I punched in the voucher it gave me an error message (the airtime voucher is already been used ) ,went back to the store to query about , the lady who helped me tried again to load the airtime but it gave her the same message .She took the phone and the airtime voucher to her Branch manage instead of her coming out of her office to come and talk to me regarding the problem she took my phone without my permission and call the customer care querying about the voucher with my cell phone ,I found that unprofessional instead of giving me an option of reimbursing me back or giving me the new airtime she never did nor apologizes .Even worse she told me to come back after 10 min on my way there ,Westgate mall experienced power cuts and when I get there already the door was closed and dark .I left my money there .Later she call and ask if I can come back tomorrow for my money . I need this matter to be resolved and dealt with immediate effect .it show unprofessionalism and uncharitable.<br>