Spar Tops Vorna Valley Security

Hello Peter, I cycled to Spar Tops Vorna Valley Midrand yesterday the 23rd January 2019. On arrival there was a lady at the entrance dressed in Spar uniform and performing security duties, I asked her to please watch my bicycle while I get a beer, she agreed. I was not more than 3 mins in the store and upon return my bicycle was missing. I questioned her and she just acted dumb as if she knew nothing about it. I would want Spar to replace my bicycle as she the employee agreed to watch my bicycle as it was not allowed inside the store. Thanks