Electronic gift voucher

My grandmother bought a electronic gift voucher to the value of R2000 and the recipient was supposed to receive an sms immediately but its 7 days later and nothing. I went to the nearest foshini store and they advised there is nothing they can do. An elderly women has been ****** who has been your client for years and the best you can say is nothing, you are really ********s and I won't take this lightly as she would need to pay that money back. I'm going to make everyone aware how you treat pensioners on all social platforms and take this case to the consumer goods and services ombudsman

This is unacceptable from a big company like yours