Euro Food Centre

Loving going there as it's on my route to home, good quality fruit and veg. However, some staff really needs to fix their attitude. I have worked in customer service for a decade and I know full well it is not hard to accomplish basic welcoming interpersonal skills. I am never a customer with an attitude so not sure why they have the right to treat their customers with utmost rudeness. No 'hello' or 'thank you' and no answer to my basic questions i.e. can I pay by card. Everyone has bad days but not sure how strangers would be to blame for it.