Poor Customer service

I always support PEP on a monthly basis I visit a Pep approxamitly twice a week and sometimes you do need the toilet. I've used many Pep toilets in the past and I appreciate it every single time and I leave the store toilet just as I found it sometimes in a better condition. Today however after I made my purchase I asked the lady serving me If I might use the toilet, she asked the manageress that flatly refused. I left the store feeling deflated and negative. I used a toilet of the U-Save store in the same complex without even making a purchase. I returned to Pep and returned my purchase......surely I'm not expected to keep on supporting an organisation that wouldn't help their customers out in a time of embarrassing need? I must say this has left a bitter taste in my mouth.