I'm afraid I don't teach this period at A Level and don't have any good textbooks to hand to check the veracity of the statement about Britain and the Genoa Conference in your first post. Nor have I been able to check online.
However I have found this
France in 1922 page which seems quite helpful to me. It certainly is as far as relations with Russia and Germany from a French angle is concerned.
If the statement is true, then I would have thought it demonstrated a willingness on Britiain's part to recognise that the demands for reparations from Germany were excessive. (NB Hadn't Germany just declared that she could not pay that year's installment??) It suggests to me that Britain wanted a rapprochment with Germany - whereas the French did not.
Was it not
Russia's war debts that Britain was refusing to cancel in 1922? (You'd need to check on this).
It seems to me that all this is highly relevant to your 'Historical Investigation' exam since it demonstrates that the British government were more anti -Russian than they were anti-German and given British involvement in the Russian Civil War (against Bolsheviks) - not long ended in 1922 - this is hardly surprising.
I think the focus of this Paper is '
Chamberlain and Anglo-German Relations' isn't it? In that case the relevance of events in 1922 should tie in nicely with appeasement in the 1930s (ie British reluctance to 'do business' with the Soviets in 1938/39 and a willingness to negotiate with Hitler).
It would also seem to demonstrate the 'gap' between French and British concerns regarding Germany in the inter-war years.
Does that help any more??