Invalid exchange?

[Symarip]

I've just opened up my very first wallet on Blockchain and deposited 50 bucks no problem a few days ago, but now when I tried to do it again it says Invalid exchange.  What does that even mean?  Anyone else having a problem with this site? 

[Stephen Gornick]

I've just opened up my very first wallet on Blockchain and deposited 50 bucks no problem a few days ago, but now when I tried to do it again it says Invalid exchange.  What does that even mean?  Anyone else having a problem with this site? 

Blockchain.info/wallet uses external partners for making it possible to buy bitcoins.

Was this the BitInstant/moneygram (U.S.) form, or UK form, or what currency?

[Symarip]

Yep, I'm using U.S. currency and the  BitInstant site Blockchain navigates to when depositing cash.   

[dave859]

Bit Instant is very unreliable. I don't use the feature to send to a bitcoin address but I keep hearing about it being down all the time.

[Symarip]

I'm brand new to this stuff, what seems to be the most popular way to put cash into your Bitcion wallet?