Relieving letter - worked for 2 months in an IT sector and resigned

I have worked for 2 months in an IT sector and resigned. I asked them if any procedure needs to be done before leaving "they said that HR will call you". I neither received any calls from them nor they responded mine. Now, I am facing issues from a company which i was about to join for submission of relieving letter. Can anyone suggest me on how to resolve this issue. Please, i am feeling helpless..

In our company, we will not issue any relieving order to persons who resign from services, within 6 months from the date of joining and will not issue any experience certificate to persons who resign from services within one year from the date of joining services.

Thanks for your immediate response sir. But i would also like to clarify one more thing that, whether this will create any problem while opening PF account in another company. Because, members in my previous company have opened a PF account..

HR from my previous company have collected my PAN details for opening PF account. But i resigned from that company within 3 months and they didn't provide me relieving letter and two months salary. Whether this opened Pf account will create any issue while joining a new company...