Keeps harassing me on my private number

I usually love going to cash converters Northgate but now I no longer go there due to the rude employee. A man who works at the cash Converters is extremely rude. The last few times I went and I asked how much an item was to double check, I would see him take the price tag off and tell me it costs me. An example is a couch, it was 6000 and he told me it was 7500. Last time I went there he was pushy I buy more items (most of which were broken) and now he has gotten my personal number and started spamming me with items at the cash converters. I never said I wanted him to send me any items, in fact the only time I gave my number was so it was on the system, I never even directly gave him my number. It is absolutely abhorrent that employees are allowed to harass customers on their personal cell phone number