Where to buy Myntra GV at 10% and above?

Nowhere

https://www.desidime.com/deals/paytm-spin-win-f...

But I got Uber code.

Magicpin offering 7%.

Magic pin 7% + dc rewards [useless ]

Use Myntra bank offer if any....10% is hard to get nowadays unless some special offer comes.

Park plus 6 off +5 if u have SBI cash back card

Technically you're trading when you buy myntra gift card from any other place other than myntra because they have traded thier platform use case to provide the discount on gift card and is also a intermediate but these are quote unquote official channels 

So philosophically you're trading at core..... But if you stil feel otherwise it doesn't change the above statement... And trading here on dd Or telegram etc is quote unquote unofficial 

So every platform/individual trades his money for some gain (either monetary or non monetary)

So it's your option to get official trade where you get lower discount or get higher discount on unofficial.... This both wouldn't be combined always but may be sometime you could but not always

Choose one but try to combine both