This is the answer to your question "as below"
but I don't think that it will be any help with your problem, simples!
This is an Argos brand...
The top panel that the hose connects to will swing upwards to expose the dust bag - the hinge for the panel will be on its long edge - so the catch to release the panel will be away from the hinge and beyond the hose hole - you need to LOOK for the catch - it's a regular thing with vacuum cleaners...
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