Wow, I'm saddened to hear this !
I actually have a grab it that is still unopened in the original box ! I was going to open it and use it this weekend. I will surely save the cleaning canister LID and try to put it on another product. I'm glad to hear we can at least use swifter pads !
BTW, I use a BONA mop regularly on my laminate floors. I previously used the same system at my old house with solid oak hardwood floors. I use a BONA micro fiber floor pad with BONA cleaner and polish. Their mop and pads work great, are reusable and could be used with your favorites cleaner. I wait for BONA to go on sale for buy one get one free, and then I stock up.
I have found that using the bottle that mounts to the mop is very cumbersome and not very effective. I just use the product in a spray bottle and spray with one hand and mop with the other. This goes twice as fast as using the spray unit on the mop with the mop mounted product canister.
For those that still have a grab it mop, you can use a swifter pad, and just put your cleaner in a spray bottle and you will have successful moping.