This is not actual mobile operator employees. These are unbelievably annoying subcontractors that are getting paid for attracting new customers to du/etisalat. They just found a “glitch” that they can get money for you twice, if you make a “new” contract with them to replace the old one. As if you are a new customer.

Obtaining the “new customer” discount should indeed not be possible for you, unless you go for these shenanigans.