hi, i am new to maxis bband. i just subscribed to maxis bb on 23rd april (1.5gb rm48). i paid rm100 activation fee. (without modem coz i already have modem and i don't want the contract) at maxis centre kuching. then, because i don't take the modem, they give me rm33 rebate for first 3 months. so i have to pay just rm15 in 3 months. . the speed is good compare to celcom. today, then i think i should switch to rm68(3gb) so i just need to pay rm35 per months for 3 months and i will switch to 1.5gb plan on the 4th month. i called maxis bband customer service to upgrade to 3GB plan. he said that the 1st month bill will be based on the pro-rated rate. while the 2nd and 3rd month will be full rm35. i just want to ask what is pro-rated rate, and how to calculate that? i use 1.5gb plan for 2 days and yesterday i still remain 1.1gb. then, if i use more than the quota, the speed will be throttled. is there extra charge when we use more than the quota? please help