Hi there,
Coventry University student ambassador here!
I can understand when you're eagerly waiting on something it can feel daunting though you have nothing to worry about as I would recommend you check the type of offer letter you've received. If it is a "conditional offer" letter then you would be require to meet some conditions stated on it. Upon meeting those is then you're supposed to wait for the "unconditional offer" letter which is the final letter. If you've already received an "unconditional letter" you're not to wait for another as after accepting this and hence further submitting the deposit you will be beginning your enrolment process with the university.
All official documents and offer letters are sent via email or post.
I hope this helps, and we are excited to see you this September!
Best reagards,
Harleen.
kin