ESA while still employed

Background
My daughter has been signed off work since October 2016 due to uncontrolled seizures (currently averaging 6 a day). She has exhausted her entitlement to company sick pay and SSP, and since 20 April 2017 her only income has been contribution based ESA with Housing and Council Tax benefit. We have yet to receive an ESA medical questionnaire, and I have twice reminded the DWP of this.

We are currently awaiting a decision on PIP, having had her face-to-face assessment on 17 May 2017.

QUESTION:
Perhaps I shouldn't anticipate problems, but having read horror stories I'm wondering what happens to my daughter's benefits if the DWP declare her fit for work? She already has a job, which she loves but is too ill to return to at the moment, so she wouldn't be able to work elsewhere or claim JSA . We've never claimed benefits before and it's all very confusing! Any advice would be welcome!

Thank you, Gordon. You're a star.

I phoned DWP again earlier today asking for the ESA50. After being put on hold for a while, I was told my daughter's claim was in the queue and there was no need to call again asking for the ESA50 unless she did not hear by the end of the 13 week assessment phase, but not to worry because if she was eventually put in the Support Group any payments would be backdated. (No regard as to how she manages financially in the meantime!) I have decided that I'll phone again next week, and in the meantime I will also write.

"If she is unsuccessful with her claim then she does have the option of challenging the Decision, but there will be a period during this process when the only benefit available to her will be JSA or Universal Credit." Haven't looked into these benefits yet.... hoping I don't have to... but surely she wouldn't be able to claim JSA as she already has a job, it's just that she's on long term sick leave? I've no idea about Universal Credit and will do some research into that if the time comes, but at the moment I'm still trying to get my head around PIP and ESA! I'm studying the guides and making copious notes! Thank you.

Thanks Gordon.

I rang the number quoted on the CHDA link you gave and they said they had no record of my daughter's claim for ESA ; they could not trace it through her National Insurance number; and they do not issue ESA50 forms. ???? They advised me to go to the Job Centre to get them to print one out.

I can't access the pdf version of the ESA50 through the link you gave - it keeps telling me to log in, which I've already done - but I've got one from the gov.uk website - ESA50 04/17, which I hope is up to date. Can you tell me what address I should send the completed form to? (It simply says to return it using the envelope enclosed, which obviously we did not get!)

Isn't this fun!