Address: 12onBy6PKgw3tuESG5kXjE2XnGeWszoo8J
250mB @ 67.80 USD
Nothing there -> https://blockchain.info/address/12onBy6PKgw3tuESG5kXjE2XnGeWszoo8J
-> https://www.blocktrail.com/BTC/address/12onBy6PKgw3tuESG5kXjE2XnGeWszoo8J
-> https://insight.bitpay.com/address/12onBy6PKgw3tuESG5kXjE2XnGeWszoo8J
blockr, lists an unconfirmed input of 0.25 -> http://btc.blockr.io/zerotx/info/fc29bb217d71b0a324f077d558eb120027890e445037d091bc09c9b9d5a51842
archive (just in case it also forgets about the TX) -> https://archive.is/BYeLf
If you click the little arrow (<) next to the "sending address"[1] you will get to another TX that is also not confirmed.
This chain goes back a few TX until you reach a point where even blockr does not remember anything about the TX.
This sounds like a quickbt.com mistake. Not sure what exactly went wrong there, but it did not start with your transaction. You should get in contact with them
either via their homepage -> https://quickbt.com/ca/contact/
or in their thread -> https://bitcointalksearch.org/topic/quickbt-canada-checkout-in-bitcoin-using-your-bank-account-272967
Your TX ID is -> fc29bb217d71b0a324f077d558eb120027890e445037d091bc09c9b9d5a51842
and they need to resend it. If they do not comply contact interac about a possible refund. I am not familiar with that service so I cant tell if its possible.
I left a warning for other users on their account here, good luck.
[1] there is no such thing, its just displayed like that to make it easier to understand for us humans