It makes no sense it is too long and it doesn't read well - can someone write it in English for me please?
"I also enclose an estimate for 6 sessions, please be aware that once the sessions have started, if they were cancelled for any reason there would be a payment due for the remaining insurance costs at a rate of £25 per cancelled session (eg if cancelled after 3 sessions, the cancellation fee would be £75.00)."