Subway complaint: Very rude staff

I would just like to complain about the rudeness of the staff in your guildford subway (next to the bedford road carpark)
I had just picked my husband up from guildford train station as he had been on a long haul flight, i thought i would treat him to one of your meal deals, upon arrival in the place my husband kindly asked if he could use the toilet as he has a medicl conditon.
The male member of staff said NO you cant, so my husband asked the female member of staff and she shouted and said No you cant use the toilet, there was no apology as to why he couldnt.
By this time my poor husband got really upset and said to me i desperately need the toilet.
I then said to the female member of staff you need to let my husband use the toilet and she shouted back at me and said No…
I then said to her where is the nearest public toilets here and they both just totally ignored me..
By this time my husband was so distressed he had to go outside and try to find somewhere a bit private and relieve himself and left me in the store to order the food.
I stood there for about 5 minutes and BOTH the memers of staff just ignored me.
I then politely said to the male member of staff are you going to sereve me or not, he looked up and said what do you want, NOT what would you like or anything, by this time i was starting to get very annoyed and said to them both that they really do not have any customer skills at all.
I then told them they can both stick thier food where the sun dosen’t shine and walked out without anything to eat..
I am so cross at the way both myself and my husband were spoken to and treated by your members of staff, and i vow never ever to set foot into one of your places again..
SO PERHAPS TRY TEACHING EACH AND EVERY MEBER OF STAFF YOU EMPLOY SOME CUSTOMER SKILLS.