We have different entities and entity is assigned based on your legal country of residence, each of which has been formed to carry client accounts based upon local regulatory requirements and IBKR policies. You will not be able to open a IB LLC account unless you relocate in future.
Cryptocurrency trading is currently not available to IBUK clients.
If you're looking at Cryptocurrency based products such as ETFs or Futures, kindly note that due to FCA regulations on IBUK client trading of crypto based instruments, MiFID Non-Professional clients are restricted from trading these products. As you're currently designated as a MIFID Retail Investor, you would not be able to trade on these products.
It is possible to be reclassified from Retail to Professional once certain qualitative, quantitative and procedural requirements are met.
Qualitative Requirements: We must conduct an assessment of your expertise, experience and knowledge to ensure that you are capable of making your own investment decisions and that you understand the risks involved.
Quantitative Requirements: We must ensure you have satisfied two of the following criteria:
1) You have carried out trades in significant size (EUR 200,000 or greater) on the relevant market at an average frequency of 10 per quarter over the previous 4 quarters;
2) Your entire portfolio including cash (and positions not held with IBKR) exceeds EUR 500,000;
3) You have worked in the financial sector for at least 1 year in a professional position.
Procedural Requirements: If you believe you meet the requirements to be reclassified as a Professional, you can submit a request to change your status in Client Portal by Clicking the User menu (head and shoulders icon in the top right corner) followed by Settings > Account Profile > "MiFID Client Category" and follow the steps on the screen.
You will find more information about MIFID in the following link:
https://ibkr.info/article/3298