How you spend the monry- PIP

Dear All,
Please would you kindly advise me on the following:

About two weeks ago my husband had his home face2face for PIP.
He is bed bound, I do everything for him. I am his full time carer, day and night.

I was under the impression that the award was based on point system, so
I was very surprised when the hcp asked me, what do we need the money for? As my husband was lying in bed and had trouble doing anything.

He said that the money is for being independent since I do not hire carers to help me, as I am his full time carer, I know exactly how everything affects him, and anyway the cost of carer would only pay for 1 an hour and half a day (not enough care time in a day) - he could not see the eligibility.

I said we need the PIP for warmth, special food, washing products, nappies, replacement clothes, vitamins and special supplements.

He said that bills and food do not count for the care. (keeping warm because of his conditions).

Does the hcp have any right to mark us on how we use the money or on how we spend it, as its all used for my husbands care and mobility.

And on the mobility side does only going out four times a year, to medical appointments have an affect on the amount of mobility award. That we cannot justify why we need it.

Are there any guidelines from the DWP for how the money should be awarded or how it’s spent.

We felt completely humiliated.
Kind regards,
black2cat xxx