By Ali Lyon A top London PR agency that counts Alastair Campbell as a senior consultant was forced to delay its staff bonuses after the Qatari government was late paying it millions of pounds of fees. Staff at Portland Communications, which counts Apple, Pfizer and Universal Music among its clients, did not receive bonuses they were owed for almost a year due to the strain the late payment put on the firm’s finances, City A.M. understands The gulf nation appointed Portland in the run-up to the 2022 football World Cup at a time when the country was facing heightened international scrutiny due i…