Got Delivered both HDFC Millenia and Platinum

[GURPS]

I had placed the Platinum DC through netbanking on 1st September but then I cancelled the request realising that Millenia will be better.

But the bank mistakenly sent me both Millenia and Platinum on separate Bluedart. What should I do now?
Will I be charged for both or for only one card as I will use only Millenia and ignore other.

As there is RBI regulation for CC that if not used for one month then it automatically gets disabled and not get charged, Is it same for DC too?

 

[Exewhyzee]

I had multiple millenia DCs delivered, but at a time only one could be active. Other would get deactivated as soon as new card gets activated.