Ladies Tennis Competition in Hannover

Hi All,
I was wondering if anyone knew of a Ladies or Mixed tennis competition in Hannover???
I am finding it very difficult to find information, I have been paying a coach 60 Euro an hour for lessons twice a week and after 3 weeks am still not closer to finding out this information. Or I have asked Protected content and the information is not forth coming...
I am not a beginner and have played tennis for many years at high levels...
I have tried Google and called various clubs but as Ich nicht sprechen Deutsche, I am finding it rather hard.
Can anyone help ??? I would be very great full for any help...
Many Thanks Jennifer