Wrong number!

I registered my private telephone number from the day I moved to the country, but now I'm thinking of changing it, even with all the hassle that that entails.
I've been getting strange calls lately - and the people calling all expect their call to be forwarded to one patient or the other. So it seems there's a new clinic or hospital or private practice here somewhere with a similar number to mine. One good lady who called a couple of days ago was kind enough to tell me the number she dialled. The number is exactly the same as mine, except for one additional digit at the end, which happens to be the same digit as the last one of my telephone number. So...I assume the people calling must be pressing the buttons really s-l-o-w-l-y, and by the time their finger touches that last button the call has already gone through to me!