The communications regulator, Ofcom, has told interested parties that it intends to make a ruling on whether to allow MPH to advertise, but has yet to set a date for its decision. But an Ofcom spokesman said the ruling was "not imminent".
Meanwhile, the Broadcast Advertising Clearance Centre has banned a number of new MPH ads on the grounds that they breach section four of the Advertising Standards Authority's code on TV broadcasting.
The problems are understood to particularly concern ads that direct viewers to the website www.makepovertyhistory.org, because the site contains "political" content.
MPH has managed to get some of its ads through the process, including the call-to-donate "click" ad, which features big names such as Kate Moss, Brad Pitt and Bono.
The banned ads were produced by Abbott Mead Vickers BBDO and were intended to run on the £3 million-worth of media space that has been donated to the cause by various media owners.
According to Peter Souter, the deputy chairman of AMV, the agency will re-cut the remaining work in an attempt to get it through.