Language campaigners have accused the BBC of acting 'undemocratically' by preparing to announce details of S4C 's future while parliamentary debate continues.The BBC is expected to announce a financial offer for S4C between 2015 and 2017, although they have no statutory power to do so given that any deal depends on parliamentary approval.According to the campaigners, the corporation have 'behaved like Government poodles' by signing a joint deal which allows the BBC to decide on S4C's budget and agree a governance arrangement without the channel's or its viewers' consent.Last year, the BBC brokered a deal which permits the UK Government to cut its grant to S4C by 94% over four years, from £101 million in 2010-11 down to £7 miliwn in 2014/15, and fund the channel via the TV licence fee from 2013/14 onwards - an overall real terms cut of 40% to the channel's budget.In an open letter to the BBC Trust in London, Cymdeithas yr Iaith Gymraeg's Chair Bethan Williams says:"We write to you to express concern about the fact you intend to publish plans for S4C's future in the near future without consulting the people of Wales and while the parliamentary process continues. There has been no input by people in Wales or our politicians in the Assembly, so we believe the plans you are discussing are invalid and undemocratic ..."Cymdeithas yr Iaith Gymraeg's letter continues by calling for a postponement of the decision on the offer or agreement concerning the future of the world's only Welsh TV channel so a full review of S4C can be held:"To date the BBC has succeeded in ignoring the cross-party consensus of the Welsh Affairs Select Committee by implementing plans contrary to their recommendations ... These plans you intend to announce run counter to the democratic process and so shouldn't be announced. Instead you should call for a full and independent reivew of S4C ... and wait until a fair decision is taken on that basis."Adam Jones, Cymdeithas yr Iaith Gymraeg's broadcasting spokesperson added:"From the start, the BBC has behaved like the poodles of the Government in London. Instead of defending the Welsh language and broadcasting in Wales, the BBC's management have decided to ignore the cross-party calls. Since then, its representatives in Wales have tried to argue their making of the best of what's been imposed on them by the Government. Well, that's not true, as the Director General said in front of MPs, the BBC 'freely' agreed to this deal."The plans for S4C have been criticised by the four main party leaders in Wales, two Westminster committees, tens of unions and language groups and tens of thousands of people who have signed a petition, attended rallies and written to politicians. For example, MPs received over 1,200 emails opposing the plans in a matter of days ahead of a committee vote a few weeks ago.