Q: Are uk database technologies ltd a scam?

It's a scam.

Sorry, but you've been scammed. What prompted you to contact them? Or was this based on a cold call from them?

Phony "tech support" / "ransomware" popups and web pages

Unfortunately, that is a common scenario. If you permitted the scammers to access your computer, you should consider it compromised and restore it using a backup that predates the intrusion. If you used a bank/credit card, consider it compromised and contact your bank for steps to deal with the fraud.

No one can determine such stuff from outside your computer.

If you did not ACTIVELY engage them for this purpose, and deliberately install their software for this purpose, they are simply lying to you to get your money, your credit card, or your identity. You are dealing with criminals who will tell you anything to get your money.

Excerpted from Effective defenses against malware and other threats:

Don’t rely upon Internet search engines to obtain technical support phone numbers:

• Scam artists pay popular Internet search companies in exchange for greater prominence in search results, so their websites and contact information are given precedence over the legitimate companies they fraudulently claim to represent.
• If you require technical support, determine the company’s legitimate contact information from their own website or product literature, and initiate contact with them directly.