TVS Motor Company — No exchange is done on order no. 43565 ( #EXC231)

Respected sir
On 7th October this month I received order no. 43565 containing three items ( ordered via TVS ANDROID APP ), of which one item, ie, TVS gloves (m) size is not fitting, so that I opted for L size on the same day, that is 7th October this month.
However, no initiation is taken by the company to exchange the item. Only it's showing "pending approval ".
When contacted customer care, they redirected me to here and there, confusing me
A screenshot is provided to u for your kind perusal.
Plse take fast action, as the company states, the exchange can be done before 15th October.