The Offaly service is facing a funding shortfall of up €50k.
The HSE is yet to respond to an invite to visit a midlands cancer support service, nearly two months after it was issued.
Dóchas, which is based in Tullamore, sent the invite to the Health Service at the beginning of September, in a bid to acquire more funding.
The service is in need of between €40,000 and €50,000, or it faces a major operating deficit for 2023.
Tánaiste Micheál Martin says he will raise the issue with Health Minister Stephen Donnelly.
Manager of Dóchas, John Conroy, says they just want engagement from the HSE:
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