Sefton Central Labour MP Bill Esterson and Molyneux Ward Labour Councillor Tony Carr received assurances this week that Arriva had no plans to change the 345 bus service.
Bill and Cllr Carr were invited to a meeting organised by Melling Parish Council Chairman Cllr Gerry Lee and Tuesday Club organiser Sharon Groom.
Arriva operations manager Bill Francis and general manager Peter Sass were also on hand to answer questions from residents about the 345 service.
Residents had become increasingly concerned about the bus as rumours spread across the village that Arriva was planning to scale back the service.
Peter Sass told the residents: "Arriva have no plans to change the 345 service. The service will continue to operate as it has done.
"I think this rumour has come about as we have been reviewing Arriva services, but I can state now that we have no plans to change the 345, either its frequency or its route."
MP Bill Esterson said he was delighted that Arriva was able to quash the rumours and allay the residents' concerns.
Bill said: "Public transport is a major issue for people in Melling and other parts of East Sefton.
"The 345 service is clearly one which the residents of Melling want to keep and they will resist any changes to that service.
"But Arriva has quashed the rumours and the service will remain as it is. This is good news for the people of Melling and Aintree Village."
Molyneux Ward Labour Councillor and Melling resident Tony Carr said he will continue to work with Melling Parish Council to monitor the 345 service.
Cllr Carr said: "As a borough and parish councillor I hear the concerns and complaints which residents have about a whole host of issues, including public transport.
"I will continue to listen to what residents have to say and feed back the comments to Arriva and Merseytravel.
"But I am delighted that Arriva has given these assurances today."
Melling Parish Council chairman Cllr Gerry Lee said he was pleased with the result of the meeting.
Cllr Lee said: "I'd like to thank the gentlemen from Arriva, as well as our MP Bill Esterson and Cllr Tony Carr for coming along today.
"This just shows how effective the partnership between our MP, our borough councillor and the parish council is.
"Great news for Melling."