The money pinch is everywhere. The Airbus tankered 30 TONNES of fuel from LOS (where they have limited credit) to London so that they wouldn't have to pay cash (that they don't have) for fuel there.
The HMU (fancy name for fuel pump, cost over $100,000 each) has been replaced 4 times recently, probably because of bad fuel in LOS. They didn't want to pay for an installation in London, so they tried to smuggle the HMU to LOS. Customs said no, they must pay the duties. So it was carried back to London.
The bottom line. Maintenance is clearly dictated by cash. No money, just fly a round trip with a known faulty HMU.