Hi, please explain to me why my power usage on prepaid spikes severely as follows: 10 June -18 kwh. 11 June - 23 kwh, 12 June- 20 kwh, 13 June - 16 kwh, 14-19kwh, 15-20 kwh,16-23 kwh, 17 June - 60 kwh, 18 June - 25 kwh, 19 June 24 kwh and today, 20 June 69 kwh. No usage merits the two severe spikes that is reflected here. Please explain to me how it is possible.