Please be aware for the following FCA calrification:
Many cryptoassets are highly speculative and can therefore lose value quickly. The FCA does not have consumer protection powers for the cryptoasset activities of firms. Even if a firm is registered with the FCA, we are not responsible for ensuring cryptoasset businesses protect client assets (ie customers’ money), among other things.
It is unlikely that you will have access to The Financial Ombudsman or Financial Services Compensation Scheme, irrespective of whether a firm has temporary or full registration.