Just been refused access to a toilet in costa coffee in Sevenoaks (even though I showed my bladder and bowel card) because apparently the light isn't working. I said I didn't care about turning the light on and I could use my phone. I begged them because I was desperate to urinate and they still said no. I was a customer as well because I had just bought a coffee off of them so it wasn't like I just walked in off the street asking to use the toilet. I explained to the staff that this was an emergency and like I said above I showed them my genuine bladder and bowel card from the bladder and bowel society and they basically didn't really care. I suffer from interstitial cystitis which makes it almost unbearably painful to hold urine in the bladder for longer than a few minutes. Staff had no understanding what so ever.