Help regarding titan eye plus gift voucher

Can someone plzzz help me, I want to purchase frame+glass from titan eye + store. I want to know whether we can purchase it through gift card offline.

And whether we can use multiple gvs to buy single product….for eg. Frame cost is 5000 rs. So can I buy it through 10 seperate gv of 500

If any one know plzzz reply..thx