Original sentence: Critics, meanwhile, have attacked Ryanair's trade union non-recognition policies  and allegedly limited customer support (for instance, the support personnel can only be reached by premium-rate phone numbers).It has also announced plans to introduce gambling in-flight...Its supporters praise its cheap tickets and its public image (populism, radical management, challenging what Ryanair calls the establishment within the airline industry).Ryanair is one of Europe's most high-profile companies, strongly praised by consumers and by business people and sharply criticised mainly by some amongst the Trade Union establishment
Edited sentence: Critics, meanwhile, have attacked Ryanair's trade union non-recognition policies , using advertising which was proved "misleading and offensive" in court and was repeatedly rapped by advertising authorities  and allegedly limited customer support (there are report of users left stranded without no support when a flight is cancelled or diverted to a different airport).It has also announced plans to introduce gambling in-flight.. The company saves on its employees too - they are required to pay for their own job training and work clothes.Its supporters praise its cheap tickets and its public image (populism, agressive advertising and press relations, challenging what Ryanair calls the establishment within the airline industry)