No reply for notice served

November 2018 I had sent a dissolution of marriage notice to my wife. ( Served by court through post ) evidence of receiving signed by her father. After that legally she gets 30 days to reply to file her say. Till date May 2020 she has not replied to the notice. She appointed a lawyer who keeps coming on dates and gives excuses or fake reason that the notice was torn we didn't receive full things or xyz. Dates are just getting delayed. She is not allowing me to meet my child also he is 2.5 yrs now. In that case how can I collect a proof to submit in court that she is not allowing and whenever I go to meet her family abuses me to get out and not allow to meet anyone. Can I take help from local police ( what shud I tell them). For she not replying what can I do for that. It's under Christian marriage act. I go no idea what they are thinking they are not ready to talk. I got no emotions with her but got with my child. She had an affair I have the call recording and WhatsApp chat with her bf. Advise me how to go with it