Uti Infrastructure Technology & Services Limited [Utiitsl] — request for coupon number

I have applied for an individual pan for myself but later when the amount was paid and got deducted from the bank, then a window poped up on my screen saying this that my phone number is not linked to the adhar.

I informed the customer care o[censored]tiitsl,,, they are asking for a coupon number which i could not note down and now when i requested for the latter...

I am not being entertained in a positive manner whenever i call them everytime the executive (S) asks me to wait for three to four days...
Now it as been long more than 10 days prior to this complain...

Plz him someone could help...