Unnecessary Customer Service Rejection

I walked into an Ackermans at the Watercrest mall, all I required was the land line to call Tenacity and update my contact details so I can make a purchase at that store. To my disappointment the lady I approached who I believe is Sane with glasses on blatantly refused to ca on my behalf telling me straight to call at PEP. Can I get clarification, does Ackermans only work with PEP if we purchasing but anything else they don't want to be affiliated with it? Why agree to partner up with a shop of it will be such a struggle to just dial a number for a client? This isn't the first time this shop has given me bad service and I thought with different staff there will come different service but I guess not. What that lady did to me was just unnecessary. I made the call myself and decided to make my purchase at MRP, I hope she is happy with the sale lost.