Paytm Mobile Solutions — no updates from paytm executives

I've ordered a product with order no: [protected] on 23 rd june 2018.it is showing out for delivery for the last eight days and it is not delivered yet.
i contacted the paytm executive also.first they give a reply that says they will check with courier partners but after that no response from them.once the courier boy called me and told me that he will deliver the package.but no one called me after that.please do necessary steps for the issue.