Scope community team
"The level of the funding depends on:
Access to Work will normally pay 100% of the cost if any of these apply to you:
If you apply after you have been in the role for more than 6 weeks, your employer might need to contribute towards the cost of things paid for by Access to Work.
Depending on the size of your employer, Access to Work could refund up to 80% of approved costs under £10,000. It will normally pay any balance over £10,000, up to £62,900 a year."
As you'll see, it can vary depending on many circumstances. Are you sure that ATW aren't asking your employer to contribute rather than yourself? How long have you been in your role?