Do you have any proof that it not a viable business or is it...

Do you have any proof that it not a viable business or is it just more "punting"? LOL

You do know the definition of a rebate , right ?

rebate¹
ˈriːbeɪt/
noun
noun: rebate; plural noun: rebates

1. 1.​
   a partial refund to someone who has paid too much for tax, rent, or a utility.
   "the scheme eases the move to the council tax by giving rebates in the first year"
   

   	Column 1	Column 2
   0	synonyms:	refund, partial refund, repayment; Morediscount, deduction, reduction, decrease;allowance, concession"you will be entitled to a 20 per cent rebate"

   • a deduction or discount on a sum of money due.
     "you will be entitled to a 20 per cent rebate off each standard fare"
     

     	Column 1	Column 2
     0	synonyms:	refund, partial refund, repayment; Morediscount, deduction, reduction, decrease;allowance, concession"you will be entitled to a 20 per cent rebate"

verb
verb: rebate; 3rd person present: rebates; past tense: rebated; past participle: rebated; gerund or present participle: rebating

1. 1.​
   pay back (a sum of money) as a rebate.
   "the government rebates part of your own and your employer's National Insurance contributions into the plan"
   

Now