Motorola Solutions — defective mobile set sold by company through the dealer.

Dear sir,
This is to inform you, i (Rajesh ranjan) purchased a "moto z2" from your authrised dealer at patna-bihar (Pin code - 803201).

The details of purchase as given below —

Seller - raja telecom harniwas (Shop no.- 120/112, ashiana hari niwas, dak bunglow road - patna - 803201)/ contact - [protected]/[protected].
Gstin - 10aasfr9970jizk, bill no.- 4332.

Purchaser - rajesh ranjan, patna - 800013, contact - [protected].
Model no - moto z2 play.
Imei no.- [protected].
Purchase date - 28/07/2017.
Total amount paid - inr 28000.00

Complain description —
On the time of purchasing this duel nano sim mobile set, i had only one nano sim which i inserted in sim slot 2. For the slot one shopkeeper advised me to change my regular sim to nano sim for slot one.

After ten days i received my regular sim to nano sim through my service provider.
& when i inserted that new sim to slot one it was not working properly.

When i complaint to shopkeeper for the same problem he checked my mobile & advise me to go in company service center.

Then i apposed to go service center because i received a defective set through him & he refused to take the claim.

Now i want to ask how it is possible, a consumer purchased a renowned company set from his dealer & within half moth it reflecting problems?
Is that the quality concern comprised by company?
For the service center process to repair the set why i do invest my time?
In the service period how can i manage another set to use my connectivity?

& last but not list - why a people invest a higher amount for a defective set or a repaired set?

I am too disappointed about the all above concern & confused what i have to do about this?

I do not want to service this mobile set, i only need to return my money or change my set to new one because it is the matter of trust between a consumer & the company "motorola".

For your reference i attached the picture of the purchase invoice.