Godrej Interio — difference in tax invoice and order confirmation form

Address:

Dream Interior And Furniture,#429/431/B, Hosur Road, Opp. Brand Factory, Bommanahalli, Bangalore 560051

I had booked slide compact tex in shellovine red on 04 jan 2020 vide order confirmation form no. F55503 by paying an advance of rs.10000.00 at dream interior and furnithre #429/431/b, hosur road, opp brand factgory, bommanahalli, bangalore 560068.. On their confirmation of our order ready i paid the balance of rs.16000.00 on 14 jan 2020. Total amount paid is rs.26000.00. On 17 jan 2020 vide tax invoice cin no. U28993mh1932plc001828 and sales invoice no. 711/11117377 dated 17 jan 2020 for rs. 22066.13, material was delivered at my house. Next day on 18 jan 2020 the slide compact shel red tx was fixed. Now my complaint is the show room people have charged me an additional amount of rs. 3933.87. On inquiry with the show room people they say that they would make another bill for the full amount and provide me. Kindly arrange for the refund amount of difference amount.