Kindly help me to correct these sentences

[MAJSH]

1.In case of any power failure / software failure occurred, we will extend your contract accordingly
2.If you are failing to make the payment on time, we have right to terminate the contract immediately.
3.If you wish to continue / discontinue the contract after a minium period of three months, you may have to give us one month notice.
4.We need five working days to mobilize your ad need to be displayed on our LCD panel so the contract commences only on the day your ad displayed.
5.We do accept the videos in DVD format only

[lauralie2]

1. Your contract will be extended accordingly in case of any a power failure/ or software failure, we will extend your contract accordingly.

2. If you are failing fail to make the payment on time, we have reserve the right to terminate the contract immediately.

3. If you wish to continue / discontinue the contract after a minimum period of three months, you may will have to give us one month's notice is required.

4. The contract commences only on the dayyour the ad is displayed on our LCD panel.We need It takes five working days to mobilize your ad need to be displayed an ad.

5.We do accept the videos in DVD format only.