Need to contact help by email

Hi

i’m having problems I can’t use my Data SIM

I  bought a data only SIM to go in a hotspot router to share the data with my laptop for work but I put SIM in and I can’t share the hotspot. 

I’m deaf/speech impaired so can’t use voice calls I contact everyone via email or messages.  I can’t remember my password and have to keep asking for a link to get on here. 

the help section just leads to loads of multiple choice questions none of which are useful I just want a direct email address to contact smarty to ask if I can cancel this as I have still been unable to use any of the data I had paid for! 
it’s very frustrating..I thought a data plan would just automatically work as an hotspot as soon as I put it in the device.