Telebrands India Pvt Ltd — Replacement of nicer dicer plus regarding

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I received the Nicer Dicer plus but not working properly so sent it back and placed order for another products of less price than that of Nicer Dicer plus but till date I have not received the products for which I gave order in writing. Talked many a times on given cell number. They informed that they sent but got back "undelivered".
Now today also talked on mobile number in turn they said they will despatch in couple of days. But I doubt that they do not respond genuinely hence please register my this complaint.
Details are as under:
Order no. 3021710
Name: Varsha parmar
Address: 95, Somnath Park society
B/h: sarthak mall
Sargasan cross road
Gandhinagar ( Gujarat)
Pin code 382421
Thanks
Yours faithfully
Varsha parmar
Mobile[protected]