I hope this is the right place for this question? 
I purchased the OcUK Tech Labs 240mm Extreme CPU Liquid Cooling Upgrade Bundle a while a back for one of my machines.
I selected the AMD retention kit because the it's an AMD A3 machine.
The OcUK AIO mouunting kit consists of just four mounting posts and the knurled knobs for locking down the pump retention plate to the top of the processor.
I assumed that these four posts would mount into a standard AMD plastic back plate on the back of the motherboard - am I right? The threads on the posts will not screw into the back plate that I have. Are there different types of plate?
The posts have two threads on them, one of which fits the knurled nuts perfectly, the other don't fit the nuts that are in the back plate.
I guess my question is do you stock a suitable back plate that I could purchase so I can mount the cooler?
Or should one have been deployed with the kit?
The board previously had a Noctua air cooler on it and the back plate for that only has unthreaded holes through it so I can't use that either.
Any help appreciated here. I have pictures of the mount kit parts that I do have if I can work out how to post them to the forum.

I purchased the OcUK Tech Labs 240mm Extreme CPU Liquid Cooling Upgrade Bundle a while a back for one of my machines.
I selected the AMD retention kit because the it's an AMD A3 machine.
The OcUK AIO mouunting kit consists of just four mounting posts and the knurled knobs for locking down the pump retention plate to the top of the processor.
I assumed that these four posts would mount into a standard AMD plastic back plate on the back of the motherboard - am I right? The threads on the posts will not screw into the back plate that I have. Are there different types of plate?
The posts have two threads on them, one of which fits the knurled nuts perfectly, the other don't fit the nuts that are in the back plate.
I guess my question is do you stock a suitable back plate that I could purchase so I can mount the cooler?
Or should one have been deployed with the kit?
The board previously had a Noctua air cooler on it and the back plate for that only has unthreaded holes through it so I can't use that either.
Any help appreciated here. I have pictures of the mount kit parts that I do have if I can work out how to post them to the forum.