Free spam call blocker

The number is actually Scottish Power. It is a call centre operated by the company lead gen. Scottish Power are there clients. Do not worry, it is safe

I had a door to door salesperson, asking me to contact this number to discuss change of power provider with Scottish power, the person on the phone was submitting my details and then said the server had gone down and would call back. No one called back. I now believe I may have been scammed in some way. They asked for name address and amount of monthly pyts to EON my current provider. I did not provide and bank details etc so not sure how the scam will work??